SAN FRANCISCO (AP) — Yahoo CEO Marissa Mayer insists the long-stumbling Internet company has finally regained its stride, even though its revenue is still stuck in reverse.

The latest evidence of the challenges facing Mayer emerged Tuesday with the release of Yahoo’s fourth-quarter results.

While Mayer hailed product improvements that have helped attracted more traffic to Yahoo’s services, investors focused on a drop in revenue that underscored the difficulty that the company is having competing for online advertising against Google Inc., Facebook Inc. and other rivals.

Yahoo Inc. had hoped to shift the financial tide when it lured Mayer away Login to read more